Insert for a display panel



FIG. 1 is a perspective view of an insert for a display panel showing our new design, shown broken along the length to indicate indeterminate length;

FIG. 2 is a perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a side elevational view thereof;

FIG. 5 is a top plan view thereof, the bottom plan view being identical; and,

FIG. 6 is a rear elevational view thereof.

The broken-line disclosure of elements in the views is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for an insert for a display panel, as shown and described. 